Question
A 950 kg car starts from rest and reaches a velocity of 50.0 km/h in 8.50 s. If the driver has a mass of 75.0
A 950 kg car starts from rest and reaches a velocity of 50.0 km/h in 8.50 s. If the driver has a mass of 75.0 kg, what force is exerted on the car and driver during this time interval?
A. 1.23 x 102 N
B. 1.55 x 103 N
C. 1.67 x 103 N
D. 1.43 x 103 N
On a horizontal and highly polished surface, Object Y with a mass of 4.0 kg is tied by a rod to Object Z with a mass of 8.0 kg. Object Y is to the left of Object Z. If a force of 48 N is exerted on Object Z from the left, what is the acceleration of Object Y?
A. 4.0 m/s2 to the right
B. 2.0 m/s2 to the right
C. 4.0 m/s2 to the left
D. 2.0 m/s2 to the left
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